- #1

- 293

- 39

- Homework Statement
- a question about the fill factor of a solar cell

- Relevant Equations
- FF = Vm*Im/Voc*Isc

hi guys

for a solar cell i know that the fill factor is given by the following relation :

$$ FF = \frac{Vm*Im}{Voc*Isc}$$

but when solving the following example :

the book used the following relation in the problem?! :

where this Ln relation came from ?

for a solar cell i know that the fill factor is given by the following relation :

$$ FF = \frac{Vm*Im}{Voc*Isc}$$

but when solving the following example :

the book used the following relation in the problem?! :

where this Ln relation came from ?